TITLE

Temperature dependence of thermal conductivity enhancement in single-walled carbon nanotube/polystyrene composites

AUTHOR(S)
Jakubinek, Michael B.; White, Mary Anne; Minfang Mu; Winey, Karen I.
PUB. DATE
February 2010
SOURCE
Applied Physics Letters;Feb2010, Vol. 96 Issue 8, p083105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The thermal conductivity of single-walled carbon nanotube (SWCNT)/polystyrene composites, prepared by a method known to produce a uniform distribution of SWCNT bundles on the micrometer length scale, was measured in the temperature range from approximately 140 to 360 K. The thermal conductivity enhancement (50% for 1 mass % at 300 K) is reasonably constant above room temperature but is reduced at the lower temperatures. This result is consistent with the expected, large contribution of interfacial thermal resistance in SWCNT/polymer composites. Enhancements in electrical conductivity show that 1 mass % loading is in the region of the electrical percolation threshold.
ACCESSION #
48352137

 

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